Your computer has been severely infected by Backdoor Trojan, that is MSAUC.EXE. This is quite dangerous and unsafe for your PC and there may be other infections on your PC. You should urgently check your PC and remove any malicious application including MSAUC.EXE as soon as possible.

Location : %WINDIR%\msauc.exe
Type : Backdoor Trojan
Dangerous : YES
Removal : Immediately

 
How to get rid of MSAUC.EXE